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nodebb/src/redis.js

58 lines
1.4 KiB
JavaScript

(function(RedisDB) {
var redis = require('redis'),
utils = require('./../public/src/utils.js'),
winston = require('winston');
RedisDB.exports = redis.createClient(nconf.get('redis:port'), nconf.get('redis:host'));
if(nconf.get('redis:password')) {
RedisDB.exports.auth(nconf.get('redis:password'));
}
RedisDB.exports.handle = function(error) {
if (error !== null) {
winston.err(error);
if (global.env !== 'production') {
throw new Error(error);
}
}
}
/*
* A possibly more efficient way of doing multiple sismember calls
*/
RedisDB.exports.sismembers = function(key, needles, callback) {
var tempkey = key + ':temp:' + utils.generateUUID();
RedisDB.exports.sadd(tempkey, needles, function() {
RedisDB.exports.sinter(key, tempkey, function(err, data) {
RedisDB.exports.del(tempkey);
callback(err, data);
});
});
};
/*
* gets fields of a hash as an object instead of an array
*/
RedisDB.exports.hmgetObject = function (key, fields, callback) {
RedisDB.exports.hmget(key, fields, function(err, data) {
if(err === null) {
var returnData = {};
for(var i=0, ii=fields.length; i<ii; ++i) {
returnData[fields[i]] = data[i];
}
callback(null, returnData);
}
else {
console.log(err);
callback(err, null);
}
});
}
}(module));